Respuesta :

Answer:

C) 4

Step-by-step explanation:

Answer:

Value of r is 4 It is option c)

Step-by-step explanation:

[tex]given \: expression \: is \\ 15r - 6r = 36 \\ (15 - 6)r = 36 \\ 9r = 36 \\ r = 4[/tex]

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